.c-header-nav-wrap{
  width: 1170px;
  display: flex;
  margin:0 auto;
  overflow: hidden;
  background: #fff;
  padding-top: 20px;
  .lef-box{
    height: 100px;
    border-bottom: 1px solid #e8e8e8;
    padding-left: 20px;
  }
  .rig-box{
    width: 0;
    flex:1;
    height: 100px;
    justify-content: space-around;
  }
}